prove-first

Enforce test-first development by writing failing tests before minimal code.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/caseyrtalbot/claude-plugins --skill prove-first
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: prove-first
Source: https://github.com/caseyrtalbot/claude-plugins/tree/main/plugins/forge/skills/prove-first
Command: npx skills add https://github.com/caseyrtalbot/claude-plugins --skill prove-first

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Prove-first enforces a test-first discipline during feature implementation to reduce bugs and rework by ensuring tests fail before any code is written, then minimal code is implemented to pass.

Core Features & Use Cases

  • Enforces writing a failing test before implementation
  • Guides iterative development from red to green
  • Applies to both feature enhancements and bug fixes across software projects

Quick Start

Write a failing test for the chosen feature, then implement the minimal code to make the test pass.

Frequently Asked Questions about prove-first

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is test-driven development and how does it reduce bugs during feature implementation?

Test-driven development is a process where you write a failing test before implementing code, then build minimal code to pass that test. This enforces test-first discipline to reduce bugs and rework by verifying failures initially.

How do I start writing tests before code for a new software feature?

To start writing tests before code, write a failing test for the chosen feature, verify the test fails, implement the minimal code required to make it pass, then commit changes after the test turns green.

Can I apply test-first development to bug fixes as well as feature enhancements?

Yes, you can apply test-first development to both feature enhancements and bug fixes across software projects. It guides iterative development from red to green by requiring a failing test before any bugfix code is written.

What is the best way to ensure my code changes are committed only after tests pass?

The best way to ensure code changes are committed only after tests pass is to follow a test-first workflow that requires minimal code implementation to turn failing tests green before allowing any commit.

Why do my tests need to fail initially before I write implementation code?

Tests need to fail initially to prove the test is actually checking the new behavior and to enforce test-first discipline. Verifying this failure ensures you implement minimal code specifically to pass the test and reduce rework.